moved to root
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Andrew Zambazos
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/*
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* Copyright (C) 2017 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.FileUtilities = class FileUtilities {
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static screenshotString()
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{
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let date = new Date;
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let values = [
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date.getFullYear(),
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Number.zeroPad(date.getMonth() + 1, 2),
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Number.zeroPad(date.getDate(), 2),
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Number.zeroPad(date.getHours(), 2),
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Number.zeroPad(date.getMinutes(), 2),
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Number.zeroPad(date.getSeconds(), 2),
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];
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return WI.UIString("Screen Shot %s-%s-%s at %s.%s.%s").format(...values);
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}
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static sanitizeFilename(filename)
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{
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return filename.replace(/:+/g, "-");
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}
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static inspectorURLForFilename(filename)
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{
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return "web-inspector:///" + encodeURIComponent(FileUtilities.sanitizeFilename(filename));
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}
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static canSave(saveMode)
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{
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console.assert(Object.values(WI.FileUtilities.SaveMode).includes(saveMode), saveMode);
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return InspectorFrontendHost.canSave(saveMode);
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}
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static async save(saveMode, fileVariants, forceSaveAs)
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{
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console.assert(WI.FileUtilities.canSave(saveMode), saveMode);
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console.assert(fileVariants);
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if (!fileVariants) {
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InspectorFrontendHost.beep();
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return;
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}
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let isFileVariantsMode = saveMode === WI.FileUtilities.SaveMode.FileVariants;
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if (isFileVariantsMode)
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forceSaveAs = true;
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if (typeof fileVariants.customSaveHandler === "function") {
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fileVariants.customSaveHandler(forceSaveAs);
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return;
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}
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if (!isFileVariantsMode && !Array.isArray(fileVariants))
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fileVariants = [fileVariants];
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console.assert(Array.isArray(fileVariants), fileVariants);
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if (!Array.isArray(fileVariants)) {
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InspectorFrontendHost.beep();
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return;
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}
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let promises = fileVariants.map((fileVariant) => {
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let content = fileVariant.content;
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console.assert(content, fileVariant);
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if (!content)
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return null;
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let displayType = fileVariant.displayType || "";
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console.assert(!isFileVariantsMode || fileVariant.displayType, fileVariant);
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if (!fileVariant.displayType && isFileVariantsMode)
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return null;
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let suggestedName = fileVariant.suggestedName;
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if (!suggestedName) {
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let url = fileVariant.url || "";
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suggestedName = parseURL(url).lastPathComponent;
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if (!suggestedName) {
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suggestedName = WI.UIString("Untitled");
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let dataURLTypeMatch = /^data:([^;]+)/.exec(url);
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if (dataURLTypeMatch) {
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let fileExtension = WI.fileExtensionForMIMEType(dataURLTypeMatch[1]);
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if (fileExtension)
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suggestedName += "." + fileExtension;
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}
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}
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}
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let url = WI.FileUtilities.inspectorURLForFilename(suggestedName);
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if (typeof content === "string") {
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return Promise.resolve({
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displayType,
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url,
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content,
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base64Encoded: !!fileVariant.base64Encoded,
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});
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}
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let wrappedPromise = new WI.WrappedPromise;
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let fileReader = new FileReader;
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fileReader.addEventListener("loadend", () => {
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wrappedPromise.resolve({
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displayType,
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url,
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content: parseDataURL(fileReader.result).data,
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base64Encoded: true,
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});
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});
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fileReader.readAsDataURL(content);
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return wrappedPromise.promise;
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});
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if (promises.includes(null)) {
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InspectorFrontendHost.beep();
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return;
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}
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let saveDatas = await Promise.all(promises);
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console.assert(isFileVariantsMode || saveDatas.length === 1, saveDatas);
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console.assert(!isFileVariantsMode || new Set(saveDatas.map((saveData) => saveData.displayType)).size === saveDatas.length, saveDatas);
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console.assert(!isFileVariantsMode || new Set(saveDatas.map((saveData) => WI.urlWithoutExtension(saveData.url))).size === 1, saveDatas);
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InspectorFrontendHost.save(saveDatas, !!forceSaveAs);
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}
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static import(callback, {multiple} = {})
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{
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let inputElement = document.createElement("input");
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inputElement.type = "file";
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inputElement.value = null;
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inputElement.multiple = !!multiple;
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inputElement.addEventListener("change", (event) => {
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callback(inputElement.files);
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});
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inputElement.click();
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// Cache the last used import element so that it doesn't get GCd while the native file
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// picker is shown, which would prevent the "change" event listener from firing.
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FileUtilities.importInputElement = inputElement;
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}
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static importText(callback, options = {})
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{
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FileUtilities.import((files) => {
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FileUtilities.readText(files, callback);
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}, options);
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}
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static importJSON(callback, options = {})
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{
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FileUtilities.import((files) => {
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FileUtilities.readJSON(files, callback);
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}, options);
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}
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static importData(callback, options = {})
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{
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FileUtilities.import((files) => {
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FileUtilities.readData(files, callback);
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}, options);
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}
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static async readText(fileOrList, callback)
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{
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await FileUtilities._read(fileOrList, async (file, result) => {
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await new Promise((resolve, reject) => {
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let reader = new FileReader;
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reader.addEventListener("loadend", (event) => {
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result.text = reader.result;
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resolve(event);
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});
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reader.addEventListener("error", reject);
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reader.readAsText(file);
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});
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}, callback);
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}
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static async readJSON(fileOrList, callback)
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{
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await WI.FileUtilities.readText(fileOrList, async (result) => {
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if (result.text && !result.error) {
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try {
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result.json = JSON.parse(result.text);
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} catch (e) {
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result.error = e;
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}
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}
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await callback(result);
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});
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}
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static async readData(fileOrList, callback)
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{
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await FileUtilities._read(fileOrList, async (file, result) => {
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await new Promise((resolve, reject) => {
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let reader = new FileReader;
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reader.addEventListener("loadend", (event) => {
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let {mimeType, base64, data} = parseDataURL(reader.result);
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// In case no mime type was determined, try to derive one from the file extension.
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if (!mimeType || mimeType === "text/plain") {
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let extension = WI.fileExtensionForFilename(result.filename);
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if (extension)
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mimeType = WI.mimeTypeForFileExtension(extension);
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}
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result.mimeType = mimeType;
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result.base64Encoded = base64;
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result.content = data;
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resolve(event);
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});
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reader.addEventListener("error", reject);
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reader.readAsDataURL(file);
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});
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}, callback);
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}
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// Private
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static async _read(fileOrList, operation, callback)
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{
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console.assert(fileOrList instanceof File || fileOrList instanceof FileList);
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let files = [];
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if (fileOrList instanceof File)
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files.push(fileOrList);
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else if (fileOrList instanceof FileList)
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files = Array.from(fileOrList);
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for (let file of files) {
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let result = {
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filename: file.name,
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};
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try {
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await operation(file, result);
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} catch (e) {
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result.error = e;
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}
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await callback(result);
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}
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}
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};
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// Keep in sync with `InspectorFrontendClient::SaveMode` and `InspectorFrontendHost::SaveMode`.
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WI.FileUtilities.SaveMode = {
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SingleFile: "single-file",
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FileVariants: "file-variants",
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};
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