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Change webview's zoom level on JavaScript side

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This commit is contained in:
Cheng Zhao 2016-01-13 12:46:13 +08:00
parent 118924ba7a
commit af02739c4e
8 changed files with 26 additions and 58 deletions
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10
atom/renderer/api/atom_api_web_frame.cc
View file

@ -4,7 +4,7 @@
#include "atom/renderer/api/atom_api_web_frame.h"
#include "atom/common/api/api_messages.h"
#include "atom/common/api/event_emitter_caller.h"
#include "atom/common/native_mate_converters/callback.h"
#include "atom/common/native_mate_converters/gfx_converter.h"
#include "atom/common/native_mate_converters/string16_converter.h"
@ -38,11 +38,9 @@ void WebFrame::SetName(const std::string& name) {
}
double WebFrame::SetZoomLevel(double level) {
auto render_view = content::RenderView::FromWebView(web_frame_->view());
// Notify guests if any for zoom level change.
render_view->Send(
new AtomViewHostMsg_ZoomLevelChanged(MSG_ROUTING_NONE, level));
return web_frame_->view()->setZoomLevel(level);
double ret = web_frame_->view()->setZoomLevel(level);
mate::EmitEvent(isolate(), GetWrapper(isolate()), "zoom-level-changed", ret);
return ret;
}
double WebFrame::GetZoomLevel() const {

15
atom/renderer/api/lib/web-frame.js
View file

@ -1,16 +1,19 @@
var deprecate, webFrame;
'use strict';
deprecate = require('electron').deprecate;
const deprecate = require('electron').deprecate;
const EventEmitter = require('events').EventEmitter;
webFrame = process.atomBinding('web_frame').webFrame;
const webFrame = process.atomBinding('web_frame').webFrame;
// webFrame is an EventEmitter.
webFrame.__proto__ = EventEmitter.prototype;
/* Deprecated. */
// Lots of webview would subscribe to webFrame's events.
webFrame.setMaxListeners(0);
// Deprecated.
deprecate.rename(webFrame, 'registerUrlSchemeAsSecure', 'registerURLSchemeAsSecure');
deprecate.rename(webFrame, 'registerUrlSchemeAsBypassingCSP', 'registerURLSchemeAsBypassingCSP');
deprecate.rename(webFrame, 'registerUrlSchemeAsPrivileged', 'registerURLSchemeAsPrivileged');
module.exports = webFrame;

16
atom/renderer/atom_renderer_client.cc
View file

@ -57,22 +57,6 @@ class AtomRenderFrameObserver : public content::RenderFrameObserver {
render_frame()->GetWebFrame(), context);
}
bool OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(AtomRenderFrameObserver, message)
IPC_MESSAGE_HANDLER(AtomViewMsg_SetZoomLevel, OnSetZoomLevel)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void OnSetZoomLevel(double level) {
auto view = render_frame()->GetWebFrame()->view();
if (view)
view->setZoomLevel(level);
}
private:
AtomRendererClient* renderer_client_;

10
atom/renderer/lib/web-view/web-view.js
View file

@ -1,3 +1,5 @@
'user strict';
var WebViewImpl, deprecate, getNextId, guestViewInternal, ipcRenderer, listener, nextId, ref, registerBrowserPluginElement, registerWebViewElement, remote, useCapture, v8Util, webFrame, webViewConstants,
hasProp = {}.hasOwnProperty,
slice = [].slice;
@ -39,6 +41,11 @@ WebViewImpl = (function() {
this.setupFocusPropagation();
this.viewInstanceId = getNextId();
shadowRoot.appendChild(this.browserPluginNode);
// Subscribe to host's zoom level changes.
webFrame.on('zoom-level-changed', (zoomLevel) => {
this.webviewNode.setZoomLevel(zoomLevel);
});
}
WebViewImpl.prototype.createBrowserPluginNode = function() {
@ -382,6 +389,9 @@ registerWebViewElement = function() {
'insertText',
'send',
'sendInputEvent',
'setZoomFactor',
'setZoomLevel',
'setZoomLevelLimits',
];
/* Forward proto.foo* method calls to WebViewImpl.foo*. */