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/*
* Copyright (C) 2007, 2008 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
*/
import * as Common from '../common/common.js';
import * as Host from '../host/host.js';
import * as TextUtils from '../text_utils/text_utils.js';
import * as UI from '../ui/ui.js';
import * as Workspace from '../workspace/workspace.js';
/**
* @unrestricted
*/
export class ImageView extends UI.View.SimpleView {
/**
* @param {string} mimeType
* @param {!TextUtils.ContentProvider.ContentProvider} contentProvider
*/
constructor(mimeType, contentProvider) {
super(Common.UIString.UIString('Image'));
this.registerRequiredCSS('source_frame/imageView.css');
this.element.tabIndex = 0;
this.element.classList.add('image-view');
this._url = contentProvider.contentURL();
this._parsedURL = new Common.ParsedURL.ParsedURL(this._url);
this._mimeType = mimeType;
this._contentProvider = contentProvider;
this._uiSourceCode = contentProvider instanceof Workspace.UISourceCode.UISourceCode ?
/** @type {!Workspace.UISourceCode.UISourceCode} */ (contentProvider) :
null;
if (this._uiSourceCode) {
this._uiSourceCode.addEventListener(
Workspace.UISourceCode.Events.WorkingCopyCommitted, this._workingCopyCommitted, this);
new UI.DropTarget.DropTarget(
this.element, [UI.DropTarget.Type.ImageFile, UI.DropTarget.Type.URI],
Common.UIString.UIString('Drop image file here'), this._handleDrop.bind(this));
}
this._sizeLabel = new UI.Toolbar.ToolbarText();
this._dimensionsLabel = new UI.Toolbar.ToolbarText();
this._mimeTypeLabel = new UI.Toolbar.ToolbarText(mimeType);
this._container = this.element.createChild('div', 'image');
this._imagePreviewElement = this._container.createChild('img', 'resource-image-view');
this._imagePreviewElement.addEventListener('contextmenu', this._contextMenu.bind(this), true);
this._imagePreviewElement.alt = ls`Image from ${this._url}`;
}
/**
* @override
* @return {!Promise>}
*/
async toolbarItems() {
return [
this._sizeLabel, new UI.Toolbar.ToolbarSeparator(), this._dimensionsLabel, new UI.Toolbar.ToolbarSeparator(),
this._mimeTypeLabel
];
}
/**
* @override
*/
wasShown() {
this._updateContentIfNeeded();
}
/**
* @override
*/
disposeView() {
if (this._uiSourceCode) {
this._uiSourceCode.removeEventListener(
Workspace.UISourceCode.Events.WorkingCopyCommitted, this._workingCopyCommitted, this);
}
}
_workingCopyCommitted() {
this._updateContentIfNeeded();
}
async _updateContentIfNeeded() {
const {content} = await this._contentProvider.requestContent();
if (this._cachedContent === content) {
return;
}
const contentEncoded = await this._contentProvider.contentEncoded();
this._cachedContent = content;
let imageSrc = TextUtils.ContentProvider.contentAsDataURL(content, this._mimeType, contentEncoded);
if (content === null) {
imageSrc = this._url;
}
const loadPromise = new Promise(x => this._imagePreviewElement.onload = x);
this._imagePreviewElement.src = imageSrc;
const size = content && !contentEncoded ? content.length : base64ToSize(content);
this._sizeLabel.setText(Number.bytesToString(size));
await loadPromise;
this._dimensionsLabel.setText(Common.UIString.UIString(
'%d × %d', this._imagePreviewElement.naturalWidth, this._imagePreviewElement.naturalHeight));
}
_contextMenu(event) {
const contextMenu = new UI.ContextMenu.ContextMenu(event);
if (!this._parsedURL.isDataURL()) {
contextMenu.clipboardSection().appendItem(
Common.UIString.UIString('Copy image URL'), this._copyImageURL.bind(this));
}
if (this._imagePreviewElement.src) {
contextMenu.clipboardSection().appendItem(
Common.UIString.UIString('Copy image as data URI'), this._copyImageAsDataURL.bind(this));
}
contextMenu.clipboardSection().appendItem(
Common.UIString.UIString('Open image in new tab'), this._openInNewTab.bind(this));
contextMenu.clipboardSection().appendItem(Common.UIString.UIString('Save…'), this._saveImage.bind(this));
contextMenu.show();
}
_copyImageAsDataURL() {
Host.InspectorFrontendHost.InspectorFrontendHostInstance.copyText(this._imagePreviewElement.src);
}
_copyImageURL() {
Host.InspectorFrontendHost.InspectorFrontendHostInstance.copyText(this._url);
}
_saveImage() {
const link = createElement('a');
link.download = this._parsedURL.displayName;
link.href = this._url;
link.click();
}
_openInNewTab() {
Host.InspectorFrontendHost.InspectorFrontendHostInstance.openInNewTab(this._url);
}
/**
* @param {!DataTransfer} dataTransfer
*/
async _handleDrop(dataTransfer) {
const items = dataTransfer.items;
if (!items.length || items[0].kind !== 'file') {
return;
}
const entry = items[0].webkitGetAsEntry();
const encoded = !entry.name.endsWith('.svg');
entry.file(file => {
const reader = new FileReader();
reader.onloadend = () => {
let result;
try {
result = /** @type {?string} */ (reader.result);
} catch (e) {
result = null;
console.error('Can\'t read file: ' + e);
}
if (typeof result !== 'string') {
return;
}
this._uiSourceCode.setContent(encoded ? btoa(result) : result, encoded);
};
if (encoded) {
reader.readAsBinaryString(file);
} else {
reader.readAsText(file);
}
});
}
}
