зеркало из https://github.com/electron/electron.git
132 строки
4.2 KiB
C++
132 строки
4.2 KiB
C++
// Copyright (c) 2013 GitHub, Inc.
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// Use of this source code is governed by the MIT license that can be
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// found in the LICENSE file.
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#include "atom/renderer/atom_render_view_observer.h"
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#include <string>
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#include <vector>
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#include "atom/common/api/api_messages.h"
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#include "atom/common/native_mate_converters/string16_converter.h"
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#include "atom/common/native_mate_converters/value_converter.h"
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#include "atom/common/options_switches.h"
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#include "atom/renderer/atom_renderer_client.h"
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#include "base/command_line.h"
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#include "base/strings/string_number_conversions.h"
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#include "content/public/renderer/render_view.h"
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#include "ipc/ipc_message_macros.h"
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#include "third_party/WebKit/public/web/WebDraggableRegion.h"
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#include "third_party/WebKit/public/web/WebDocument.h"
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#include "third_party/WebKit/public/web/WebFrame.h"
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#include "third_party/WebKit/public/web/WebLocalFrame.h"
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#include "third_party/WebKit/public/web/WebKit.h"
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#include "third_party/WebKit/public/web/WebView.h"
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#include "atom/common/node_includes.h"
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namespace atom {
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namespace {
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bool GetIPCObject(v8::Isolate* isolate,
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v8::Handle<v8::Context> context,
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v8::Handle<v8::Object>* ipc) {
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v8::Handle<v8::String> key = mate::StringToV8(isolate, "ipc");
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v8::Handle<v8::Value> value = context->Global()->GetHiddenValue(key);
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if (value.IsEmpty() || !value->IsObject())
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return false;
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*ipc = value->ToObject();
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return true;
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}
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std::vector<v8::Handle<v8::Value>> ListValueToVector(
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v8::Isolate* isolate,
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const base::ListValue& list) {
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v8::Handle<v8::Value> array = mate::ConvertToV8(isolate, list);
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std::vector<v8::Handle<v8::Value>> result;
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mate::ConvertFromV8(isolate, array, &result);
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return result;
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}
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} // namespace
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AtomRenderViewObserver::AtomRenderViewObserver(
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content::RenderView* render_view,
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AtomRendererClient* renderer_client)
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: content::RenderViewObserver(render_view),
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renderer_client_(renderer_client),
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document_created_(false) {
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}
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AtomRenderViewObserver::~AtomRenderViewObserver() {
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}
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void AtomRenderViewObserver::DidCreateDocumentElement(
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blink::WebLocalFrame* frame) {
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document_created_ = true;
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// Read --zoom-factor from command line.
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std::string zoom_factor_str = CommandLine::ForCurrentProcess()->
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GetSwitchValueASCII(switches::kZoomFactor);;
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if (zoom_factor_str.empty())
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return;
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double zoom_factor;
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if (!base::StringToDouble(zoom_factor_str, &zoom_factor))
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return;
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double zoom_level = blink::WebView::zoomFactorToZoomLevel(zoom_factor);
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frame->view()->setZoomLevel(zoom_level);
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}
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void AtomRenderViewObserver::DraggableRegionsChanged(blink::WebFrame* frame) {
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blink::WebVector<blink::WebDraggableRegion> webregions =
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frame->document().draggableRegions();
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std::vector<DraggableRegion> regions;
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for (size_t i = 0; i < webregions.size(); ++i) {
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DraggableRegion region;
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region.bounds = webregions[i].bounds;
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region.draggable = webregions[i].draggable;
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regions.push_back(region);
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}
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Send(new AtomViewHostMsg_UpdateDraggableRegions(routing_id(), regions));
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}
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bool AtomRenderViewObserver::OnMessageReceived(const IPC::Message& message) {
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bool handled = true;
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IPC_BEGIN_MESSAGE_MAP(AtomRenderViewObserver, message)
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IPC_MESSAGE_HANDLER(AtomViewMsg_Message, OnBrowserMessage)
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IPC_MESSAGE_UNHANDLED(handled = false)
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IPC_END_MESSAGE_MAP()
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return handled;
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}
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void AtomRenderViewObserver::OnBrowserMessage(const base::string16& channel,
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const base::ListValue& args) {
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if (!document_created_)
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return;
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if (!render_view()->GetWebView())
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return;
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blink::WebFrame* frame = render_view()->GetWebView()->mainFrame();
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if (!frame || frame->isWebRemoteFrame())
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return;
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v8::Isolate* isolate = blink::mainThreadIsolate();
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v8::HandleScope handle_scope(isolate);
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v8::Local<v8::Context> context = frame->mainWorldScriptContext();
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v8::Context::Scope context_scope(context);
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std::vector<v8::Handle<v8::Value>> arguments = ListValueToVector(
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isolate, args);
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arguments.insert(arguments.begin(), mate::ConvertToV8(isolate, channel));
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v8::Handle<v8::Object> ipc;
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if (GetIPCObject(isolate, context, &ipc))
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node::MakeCallback(isolate, ipc, "emit", arguments.size(), &arguments[0]);
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}
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} // namespace atom
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