Andrew Zambazos
526 lines
18 KiB
JavaScript
526 lines
18 KiB
JavaScript
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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WI.BoxShadowEditor = class BoxShadowEditor extends WI.Object
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{
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constructor()
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{
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super();
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this._element = document.createElement("div");
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this._element.classList.add("box-shadow-editor");
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let tableElement = this._element.appendChild(document.createElement("table"));
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function createInputRow(identifier, label) {
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let id = `box-shadow-editor-${identifier}-input`;
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let rowElement = tableElement.appendChild(document.createElement("tr"));
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rowElement.className = identifier;
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let headerElement = rowElement.appendChild(document.createElement("th"));
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let labelElement = headerElement.appendChild(document.createElement("label"));
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labelElement.setAttribute("for", id);
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labelElement.textContent = label;
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let dataElement = rowElement.appendChild(document.createElement("td"));
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let inputElement = dataElement.appendChild(document.createElement("input"));
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inputElement.type = "text";
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inputElement.id = id;
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return {rowElement, inputElement};
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}
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function createSlider(rowElement, min, max) {
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let dataElement = rowElement.appendChild(document.createElement("td"));
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let rangeElement = dataElement.appendChild(document.createElement("input"));
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rangeElement.type = "range";
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rangeElement.min = min;
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rangeElement.max = max;
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return rangeElement;
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}
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let offsetXRow = createInputRow("offset-x", WI.UIString("Offset X", "Offset X @ Box Shadow Editor", "Input label for the x-axis of the offset of a CSS box shadow"));
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this._offsetXInput = offsetXRow.inputElement;
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this._offsetXInput.spellcheck = false;
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this._offsetXInput.addEventListener("input", this._handleOffsetXInputInput.bind(this));
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this._offsetXInput.addEventListener("keydown", this._handleOffsetXInputKeyDown.bind(this));
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let offsetSliderDataElement = offsetXRow.rowElement.appendChild(document.createElement("td"));
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offsetSliderDataElement.setAttribute("rowspan", 3);
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this._offsetSliderKnobRadius = 5; // keep in sync with `.box-shadow-editor > table > tr > td > svg circle`
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this._offsetSliderAreaSize = 100;
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const offsetSliderContainerSize = this._offsetSliderAreaSize + (this._offsetSliderKnobRadius * 2);
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this._offsetSliderSVG = offsetSliderDataElement.appendChild(createSVGElement("svg"));
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this._offsetSliderSVG.setAttribute("tabindex", 0);
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this._offsetSliderSVG.setAttribute("width", offsetSliderContainerSize);
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this._offsetSliderSVG.setAttribute("height", offsetSliderContainerSize);
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this._offsetSliderSVG.addEventListener("mousedown", this);
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this._offsetSliderSVG.addEventListener("keydown", this);
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this._offsetSliderSVGMouseDownPoint = null;
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let offsetSliderGroup = this._offsetSliderSVG.appendChild(createSVGElement("g"));
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offsetSliderGroup.setAttribute("transform", `translate(${this._offsetSliderKnobRadius}, ${this._offsetSliderKnobRadius})`);
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let offsetSliderXAxisLine = offsetSliderGroup.appendChild(createSVGElement("line"));
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offsetSliderXAxisLine.classList.add("axis");
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offsetSliderXAxisLine.setAttribute("x1", this._offsetSliderAreaSize / 2);
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offsetSliderXAxisLine.setAttribute("y1", 0);
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offsetSliderXAxisLine.setAttribute("x2", this._offsetSliderAreaSize / 2);
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offsetSliderXAxisLine.setAttribute("y2", this._offsetSliderAreaSize);
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let offsetSliderYAxisLine = offsetSliderGroup.appendChild(createSVGElement("line"));
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offsetSliderYAxisLine.classList.add("axis");
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offsetSliderYAxisLine.setAttribute("x1", 0);
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offsetSliderYAxisLine.setAttribute("y1", this._offsetSliderAreaSize / 2);
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offsetSliderYAxisLine.setAttribute("x2", this._offsetSliderAreaSize);
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offsetSliderYAxisLine.setAttribute("y2", this._offsetSliderAreaSize / 2);
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this._offsetSliderLine = offsetSliderGroup.appendChild(createSVGElement("line"));
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this._offsetSliderLine.setAttribute("x1", this._offsetSliderAreaSize / 2);
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this._offsetSliderLine.setAttribute("y1", this._offsetSliderAreaSize / 2);
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this._offsetSliderKnob = offsetSliderGroup.appendChild(createSVGElement("circle"));
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let offsetYRow = createInputRow("offset-y", WI.UIString("Offset Y", "Offset Y @ Box Shadow Editor", "Input label for the y-axis of the offset of a CSS box shadow"));
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this._offsetYInput = offsetYRow.inputElement;
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this._offsetYInput.spellcheck = false;
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this._offsetYInput.addEventListener("input", this._handleOffsetYInputInput.bind(this));
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this._offsetYInput.addEventListener("keydown", this._handleOffsetYInputKeyDown.bind(this));
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let insetRow = createInputRow("inset", WI.UIString("Inset", "Inset @ Box Shadow Editor", "Checkbox label for the inset of a CSS box shadow."));
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this._insetCheckbox = insetRow.inputElement;
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this._insetCheckbox.type = "checkbox";
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this._insetCheckbox.addEventListener("change", this._handleInsetCheckboxChange.bind(this));
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let blurRadiusRow = createInputRow("blur-radius", WI.UIString("Blur", "Blur @ Box Shadow Editor", "Input label for the blur radius of a CSS box shadow"));
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this._blurRadiusInput = blurRadiusRow.inputElement;
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this._blurRadiusInput.spellcheck = false;
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this._blurRadiusInput.addEventListener("input", this._handleBlurRadiusInputInput.bind(this));
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this._blurRadiusInput.addEventListener("keydown", this._handleBlurRadiusInputKeyDown.bind(this));
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this._blurRadiusInput.min = 0;
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this._blurRadiusSlider = createSlider(blurRadiusRow.rowElement, 0, 100);
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this._blurRadiusSlider.addEventListener("input", this._handleBlurRadiusSliderInput.bind(this));
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let spreadRadiusRow = createInputRow("spread-radius", WI.UIString("Spread", "Spread @ Box Shadow Editor", "Input label for the spread radius of a CSS box shadow"));
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this._spreadRadiusInput = spreadRadiusRow.inputElement;
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this._spreadRadiusInput.spellcheck = false;
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this._spreadRadiusInput.addEventListener("input", this._handleSpreadRadiusInputInput.bind(this));
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this._spreadRadiusInput.addEventListener("keydown", this._handleSpreadRadiusInputKeyDown.bind(this));
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this._spreadRadiusSlider = createSlider(spreadRadiusRow.rowElement, -50, 50);
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this._spreadRadiusSlider.addEventListener("input", this._handleSpreadRadiusSliderInput.bind(this));
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this._colorPicker = new WI.ColorPicker;
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this._colorPicker.addEventListener(WI.ColorPicker.Event.ColorChanged, this._handleColorChanged, this);
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this._element.appendChild(this._colorPicker.element);
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this.boxShadow = new WI.BoxShadow;
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WI.addWindowKeydownListener(this);
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}
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// Public
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get element() { return this._element; }
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get boxShadow()
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{
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return this._boxShadow;
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}
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set boxShadow(boxShadow)
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{
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console.assert(boxShadow instanceof WI.BoxShadow);
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this._boxShadow = boxShadow;
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let offsetX = this._boxShadow?.offsetX || {value: 0, unit: ""};
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let offsetY = this._boxShadow?.offsetY || {value: 0, unit: ""};
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this._offsetXInput.value = offsetX.value + offsetX.unit;
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this._offsetYInput.value = offsetY.value + offsetY.unit;
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let offsetSliderCenter = this._offsetSliderAreaSize / 2;
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let offsetSliderX = Number.constrain(offsetX.value + offsetSliderCenter, 0, this._offsetSliderAreaSize);
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let offsetSliderY = Number.constrain(offsetY.value + offsetSliderCenter, 0, this._offsetSliderAreaSize);
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this._offsetSliderLine.setAttribute("x2", offsetSliderX);
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this._offsetSliderKnob.setAttribute("cx", offsetSliderX);
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this._offsetSliderLine.setAttribute("y2", offsetSliderY);
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this._offsetSliderKnob.setAttribute("cy", offsetSliderY);
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let blurRadius = this._boxShadow?.blurRadius || {value: 0, unit: ""};
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this._blurRadiusInput.value = blurRadius.value + blurRadius.unit;
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this._blurRadiusSlider.value = blurRadius.value;
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let spreadRadius = this._boxShadow?.spreadRadius || {value: 0, unit: ""};
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this._spreadRadiusInput.value = spreadRadius.value + spreadRadius.unit;
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this._spreadRadiusSlider.value = spreadRadius.value;
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let inset = this._boxShadow?.inset || false;
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this._insetCheckbox.checked = inset;
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let color = this._boxShadow?.color || WI.Color.fromString("transparent");
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this._colorPicker.color = color;
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}
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// Protected
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handleEvent(event)
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{
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switch (event.type) {
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case "keydown":
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console.assert(event.target === this._offsetSliderSVG);
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this._handleOffsetSliderSVGKeyDown(event);
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return;
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case "mousedown":
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console.assert(event.target === this._offsetSliderSVG);
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this._handleOffsetSliderSVGMouseDown(event);
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return;
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case "mousemove":
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this._handleWindowMouseMove(event);
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return;
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case "mouseup":
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this._handleWindowMouseUp(event);
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return;
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}
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console.assert();
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}
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// Private
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_updateBoxShadow({offsetX, offsetY, blurRadius, spreadRadius, inset, color})
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{
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let change = false;
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if (!offsetX)
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offsetX = this._boxShadow.offsetX;
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else if (!Object.shallowEqual(offsetX, this._boxShadow.offsetX))
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change = true;
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if (!offsetY)
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offsetY = this._boxShadow.offsetY;
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else if (!Object.shallowEqual(offsetY, this._boxShadow.offsetY))
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change = true;
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if (!blurRadius)
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blurRadius = this._boxShadow.blurRadius;
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else if (!Object.shallowEqual(blurRadius, this._boxShadow.blurRadius))
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change = true;
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if (!spreadRadius)
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spreadRadius = this._boxShadow.spreadRadius;
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else if (!Object.shallowEqual(spreadRadius, this._boxShadow.spreadRadius))
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change = true;
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if (inset === undefined)
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inset = this._boxShadow.inset;
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else if (inset !== this._boxShadow.inset)
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change = true;
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if (!color)
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color = this._boxShadow.color;
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else if (color.toString() !== this._boxShadow.color?.toString())
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change = true;
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if (!change)
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return;
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this.boxShadow = new WI.BoxShadow(offsetX, offsetY, blurRadius, spreadRadius, inset, color);
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this.dispatchEventToListeners(WI.BoxShadowEditor.Event.BoxShadowChanged, {boxShadow: this._boxShadow});
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}
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_updateBoxShadowOffsetFromSliderMouseEvent(event, saveMouseDownPoint)
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{
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let point = WI.Point.fromEventInElement(event, this._offsetSliderSVG);
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point.x = Number.constrain(point.x - this._offsetSliderKnobRadius, 0, this._offsetSliderAreaSize);
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point.y = Number.constrain(point.y - this._offsetSliderKnobRadius, 0, this._offsetSliderAreaSize);
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if (saveMouseDownPoint)
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this._offsetSliderSVGMouseDownPoint = point;
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if (event.shiftKey && this._offsetSliderSVGMouseDownPoint) {
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if (Math.abs(this._offsetSliderSVGMouseDownPoint.x - point.x) > Math.abs(this._offsetSliderSVGMouseDownPoint.y - point.y))
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point.y = this._offsetSliderSVGMouseDownPoint.y;
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else
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point.x = this._offsetSliderSVGMouseDownPoint.x;
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}
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let offsetSliderCenter = this._offsetSliderAreaSize / 2;
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this._updateBoxShadow({
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offsetX: {
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value: point.x - offsetSliderCenter,
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unit: this._boxShadow.offsetX.unit,
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},
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offsetY: {
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value: point.y - offsetSliderCenter,
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unit: this._boxShadow.offsetY.unit,
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},
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});
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}
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_determineShiftForEvent(event)
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{
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let shift = 0;
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if (event.key === "ArrowUp")
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shift = 1;
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else if (event.key === "ArrowDown")
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shift = -1;
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if (!shift)
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return NaN;
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if (event.metaKey)
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shift *= 100;
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else if (event.shiftKey)
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shift *= 10;
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else if (event.altKey)
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shift /= 10;
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event.preventDefault();
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return shift;
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}
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_handleOffsetSliderSVGKeyDown(event) {
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let shiftX = 0;
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let shiftY = 0;
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switch (event.keyCode) {
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case WI.KeyboardShortcut.Key.Up.keyCode:
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shiftY = -1;
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break;
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case WI.KeyboardShortcut.Key.Right.keyCode:
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shiftX = 1;
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break;
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case WI.KeyboardShortcut.Key.Down.keyCode:
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shiftY = 1;
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break;
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case WI.KeyboardShortcut.Key.Left.keyCode:
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shiftX = -1;
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break;
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}
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if (!shiftX && !shiftY)
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return false;
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let multiplier = 1;
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if (event.shiftKey)
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multiplier = 10;
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else if (event.altKey)
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multiplier = 0.1;
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shiftX *= multiplier;
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shiftY *= multiplier;
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let offsetValueLimit = this._offsetSliderAreaSize / 2;
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this._updateBoxShadow({
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offsetX: {
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value: Number.constrain(this._boxShadow.offsetX.value + shiftX, -1 * offsetValueLimit, offsetValueLimit).maxDecimals(1),
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unit: this._boxShadow.offsetX.unit,
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},
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offsetY: {
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value: Number.constrain(this._boxShadow.offsetY.value + shiftY, -1 * offsetValueLimit, offsetValueLimit).maxDecimals(1),
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unit: this._boxShadow.offsetY.unit,
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},
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});
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}
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_handleOffsetSliderSVGMouseDown(event)
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{
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if (event.button !== 0)
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return;
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event.stop();
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this._offsetSliderSVG.focus();
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window.addEventListener("mousemove", this, true);
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window.addEventListener("mouseup", this, true);
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this._updateBoxShadowOffsetFromSliderMouseEvent(event, true);
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}
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_handleWindowMouseMove(event)
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{
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this._updateBoxShadowOffsetFromSliderMouseEvent(event);
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}
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_handleWindowMouseUp(event)
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{
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this._offsetSliderSVGMouseDownPoint = null;
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window.removeEventListener("mousemove", this, true);
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window.removeEventListener("mouseup", this, true);
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}
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_handleOffsetXInputInput(event)
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{
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this._updateBoxShadow({
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offsetX: WI.BoxShadow.parseNumberComponent(this._offsetXInput.value),
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});
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}
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_handleOffsetXInputKeyDown(event)
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{
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let shift = this._determineShiftForEvent(event);
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if (isNaN(shift))
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return;
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this._updateBoxShadow({
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offsetX: {
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value: (this._boxShadow.offsetX.value + shift).maxDecimals(1),
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unit: this._boxShadow.offsetX.unit,
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},
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});
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}
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_handleOffsetYInputInput(event)
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{
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this._updateBoxShadow({
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offsetY: WI.BoxShadow.parseNumberComponent(this._offsetYInput.value),
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});
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}
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_handleOffsetYInputKeyDown(event)
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{
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let shift = this._determineShiftForEvent(event);
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if (isNaN(shift))
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return;
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this._updateBoxShadow({
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offsetY: {
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value: (this._boxShadow.offsetY.value + shift).maxDecimals(1),
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unit: this._boxShadow.offsetY.unit,
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},
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});
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}
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_handleBlurRadiusInputInput(event)
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{
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this._updateBoxShadow({
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blurRadius: WI.BoxShadow.parseNumberComponent(this._blurRadiusInput.value),
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});
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}
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_handleBlurRadiusInputKeyDown(event)
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{
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let shift = this._determineShiftForEvent(event);
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if (isNaN(shift))
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return;
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this._updateBoxShadow({
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blurRadius: {
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value: (this._boxShadow.blurRadius.value + shift).maxDecimals(1),
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unit: this._boxShadow.blurRadius.unit,
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}
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});
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}
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_handleBlurRadiusSliderInput(event)
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{
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this._updateBoxShadow({
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blurRadius: {
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value: this._blurRadiusSlider.valueAsNumber,
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unit: this._boxShadow.blurRadius.unit,
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}
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});
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}
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_handleSpreadRadiusInputInput(event)
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{
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this._updateBoxShadow({
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spreadRadius: WI.BoxShadow.parseNumberComponent(this._spreadRadiusInput.value),
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});
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}
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_handleSpreadRadiusInputKeyDown(event)
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{
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let shift = this._determineShiftForEvent(event);
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if (isNaN(shift))
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return;
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this._updateBoxShadow({
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spreadRadius: {
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value: (this._boxShadow.spreadRadius.value + shift).maxDecimals(1),
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unit: this._boxShadow.spreadRadius.unit,
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}
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});
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}
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_handleSpreadRadiusSliderInput(event)
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{
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this._updateBoxShadow({
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spreadRadius: {
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value: this._spreadRadiusSlider.valueAsNumber,
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unit: this._boxShadow.spreadRadius.unit,
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}
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});
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}
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_handleInsetCheckboxChange(event)
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{
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this._updateBoxShadow({
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inset: !!this._insetCheckbox.checked,
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});
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}
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_handleColorChanged(event)
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{
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this._updateBoxShadow({
|
|
color: this._colorPicker.color,
|
|
});
|
|
}
|
|
};
|
|
|
|
WI.BoxShadowEditor.Event = {
|
|
BoxShadowChanged: "box-shadow-editor-box-shadow-changed"
|
|
};
|