blob: 4c9718c9c8b395123721e72d8ca8de2706e15fcd [file] [log] [blame]
/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.FileUtilities = class FileUtilities {
static screenshotString()
{
let date = new Date;
let values = [
date.getFullYear(),
Number.zeroPad(date.getMonth() + 1, 2),
Number.zeroPad(date.getDate(), 2),
Number.zeroPad(date.getHours(), 2),
Number.zeroPad(date.getMinutes(), 2),
Number.zeroPad(date.getSeconds(), 2),
];
return WI.UIString("Screen Shot %s-%s-%s at %s.%s.%s").format(...values);
}
static sanitizeFilename(filename)
{
return filename.replace(/:+/g, "-");
}
static inspectorURLForFilename(filename)
{
return "web-inspector:///" + encodeURIComponent(FileUtilities.sanitizeFilename(filename));
}
static save(saveData, forceSaveAs)
{
console.assert(saveData);
if (!saveData)
return;
if (typeof saveData.customSaveHandler === "function") {
saveData.customSaveHandler(forceSaveAs);
return;
}
console.assert(saveData.content);
if (!saveData.content)
return;
let suggestedName = saveData.suggestedName;
if (!suggestedName) {
let url = saveData.url || "";
suggestedName = parseURL(url).lastPathComponent;
if (!suggestedName) {
suggestedName = WI.UIString("Untitled");
let dataURLTypeMatch = /^data:([^;]+)/.exec(url);
if (dataURLTypeMatch) {
let fileExtension = WI.fileExtensionForMIMEType(dataURLTypeMatch[1]);
if (fileExtension)
suggestedName += "." + fileExtension;
}
}
}
suggestedName = FileUtilities.inspectorURLForFilename(suggestedName);
if (typeof saveData.content === "string") {
const base64Encoded = saveData.base64Encoded || false;
InspectorFrontendHost.save(suggestedName, saveData.content, base64Encoded, forceSaveAs || saveData.forceSaveAs);
return;
}
let fileReader = new FileReader;
fileReader.addEventListener("loadend", () => {
let dataURLComponents = parseDataURL(fileReader.result);
const base64Encoded = true;
InspectorFrontendHost.save(suggestedName, dataURLComponents.data, base64Encoded, forceSaveAs || saveData.forceSaveAs);
});
fileReader.readAsDataURL(saveData.content);
}
static import(callback, {multiple} = {})
{
let inputElement = document.createElement("input");
inputElement.type = "file";
inputElement.value = null;
inputElement.multiple = !!multiple;
inputElement.addEventListener("change", (event) => {
callback(inputElement.files);
});
inputElement.click();
// Cache the last used import element so that it doesn't get GCd while the native file
// picker is shown, which would prevent the "change" event listener from firing.
FileUtilities.importInputElement = inputElement;
}
static importText(callback, options = {})
{
FileUtilities.import((files) => {
FileUtilities.readText(files, callback);
}, options);
}
static importJSON(callback, options = {})
{
FileUtilities.import((files) => {
FileUtilities.readJSON(files, callback);
}, options);
}
static importData(callback, options = {})
{
FileUtilities.import((files) => {
FileUtilities.readData(files, callback);
}, options);
}
static async readText(fileOrList, callback)
{
await FileUtilities._read(fileOrList, async (file, result) => {
await new Promise((resolve, reject) => {
let reader = new FileReader;
reader.addEventListener("loadend", (event) => {
result.text = reader.result;
resolve(event);
});
reader.addEventListener("error", reject);
reader.readAsText(file);
});
}, callback);
}
static async readJSON(fileOrList, callback)
{
await WI.FileUtilities.readText(fileOrList, async (result) => {
if (result.text && !result.error) {
try {
result.json = JSON.parse(result.text);
} catch (e) {
result.error = e;
}
}
await callback(result);
});
}
static async readData(fileOrList, callback)
{
await FileUtilities._read(fileOrList, async (file, result) => {
await new Promise((resolve, reject) => {
let reader = new FileReader;
reader.addEventListener("loadend", (event) => {
let {mimeType, base64, data} = parseDataURL(reader.result);
// In case no mime type was determined, try to derive one from the file extension.
if (!mimeType || mimeType === "text/plain") {
let extension = WI.fileExtensionForFilename(result.filename);
if (extension)
mimeType = WI.mimeTypeForFileExtension(extension);
}
result.mimeType = mimeType;
result.base64Encoded = base64;
result.content = data;
resolve(event);
});
reader.addEventListener("error", reject);
reader.readAsDataURL(file);
});
}, callback);
}
// Private
static async _read(fileOrList, operation, callback)
{
console.assert(fileOrList instanceof File || fileOrList instanceof FileList);
let files = [];
if (fileOrList instanceof File)
files.push(fileOrList);
else if (fileOrList instanceof FileList)
files = Array.from(fileOrList);
for (let file of files) {
let result = {
filename: file.name,
};
try {
await operation(file, result);
} catch (e) {
result.error = e;
}
await callback(result);
}
}
};