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Add support for loading extensions (issue #1947)

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- Add CefRequestContext::LoadExtension, CefExtension, CefExtensionHandler and
  related methods/interfaces.
- Add chrome://extensions-support that lists supported Chrome APIs.
- Add CefBrowserHost::SetAutoResizeEnabled and CefDisplayHandler::OnAutoResize
  to support browser resize based on preferred web contents size.
- views: Add support for custom CefMenuButton popups.
- cefclient: Run with `--load-extension=set_page_color` command-line flag for
  an extension loading example. Add `--use-views` on Windows and Linux for an
  even better example.
This commit is contained in:
Marshall Greenblatt
2017-08-03 18:55:19 -04:00
parent 5b12134a45
commit 9cff99dc4e
178 changed files with 10360 additions and 650 deletions
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64
libcef/browser/net/chrome_scheme_handler.cc
View File

@ -12,6 +12,7 @@
#include "include/cef_version.h"
#include "include/cef_web_plugin.h"
#include "libcef/browser/extensions/chrome_api_registration.h"
#include "libcef/browser/frame_host_impl.h"
#include "libcef/browser/net/internal_scheme_handler.h"
#include "libcef/browser/net/url_request_manager.h"
@ -41,12 +42,15 @@
#include "net/url_request/url_request.h"
#include "v8/include/v8.h"
using extensions::api::cef::kSupportedAPIs;
namespace scheme {
const char kChromeURL[] = "chrome://";
namespace {
const char kChromeUIExtensionsSupportHost[] = "extensions-support";
const char kChromeUILicenseHost[] = "license";
const char kChromeUIWebUIHostsHost[] = "webui-hosts";
@ -83,6 +87,7 @@ const char* kUnlistedHosts[] = {
enum ChromeHostId {
CHROME_UNKNOWN = 0,
CHROME_EXTENSIONS_SUPPORT,
CHROME_LICENSE,
CHROME_VERSION,
CHROME_WEBUI_HOSTS,
@ -93,6 +98,7 @@ const struct {
const char* host;
ChromeHostId host_id;
} kAllowedCefHosts[] = {
{kChromeUIExtensionsSupportHost, CHROME_EXTENSIONS_SUPPORT},
{kChromeUILicenseHost, CHROME_LICENSE},
{chrome::kChromeUIVersionHost, CHROME_VERSION},
{kChromeUIWebUIHostsHost, CHROME_WEBUI_HOSTS},
@ -510,6 +516,9 @@ class Delegate : public InternalHandlerDelegate {
ChromeHostId host_id = GetChromeHostId(url.host());
switch (host_id) {
case CHROME_EXTENSIONS_SUPPORT:
handled = OnExtensionsSupport(action);
break;
case CHROME_LICENSE:
handled = OnLicense(action);
break;
@ -535,6 +544,61 @@ class Delegate : public InternalHandlerDelegate {
return handled;
}
bool OnExtensionsSupport(Action* action) {
static const char kDevURL[] = "https://developer.chrome.com/extensions/";
std::string html =
"<html>\n<head><title>Extensions Support</title></head>\n"
"<body bgcolor=\"white\"><h3>Supported Chrome Extensions "
"APIs</h3>\nFollow <a "
"href=\"https://bitbucket.org/chromiumembedded/cef/issues/1947\" "
"target=\"new\">issue #1947</a> for development progress.\n<ul>\n";
bool has_top_level_name = false;
for (size_t i = 0; kSupportedAPIs[i] != nullptr; ++i) {
const std::string& api_name = kSupportedAPIs[i];
if (api_name.find("Private") != std::string::npos) {
// Don't list private APIs.
continue;
}
const size_t dot_pos = api_name.find('.');
if (dot_pos == std::string::npos) {
if (has_top_level_name) {
// End the previous top-level API entry.
html += "</ul></li>\n";
} else {
has_top_level_name = true;
}
// Start a new top-level API entry.
html += "<li><a href=\"" + std::string(kDevURL) + api_name +
"\" target=\"new\">" + api_name + "</a><ul>\n";
} else {
// Function name.
const std::string& group_name = api_name.substr(0, dot_pos);
const std::string& function_name = api_name.substr(dot_pos + 1);
html += "\t<li><a href=\"" + std::string(kDevURL) + group_name +
"#method-" + function_name + "\" target=\"new\">" + api_name +
"</a></li>\n";
}
}
if (has_top_level_name) {
// End the last top-level API entry.
html += "</ul></li>\n";
}
html += "</ul>\n</body>\n</html>";
action->mime_type = "text/html";
action->stream = CefStreamReader::CreateForData(
const_cast<char*>(html.c_str()), html.length());
action->stream_size = html.length();
return true;
}
bool OnLicense(Action* action) {
base::StringPiece piece = CefContentClient::Get()->GetDataResource(
IDR_CEF_LICENSE_TXT, ui::SCALE_FACTOR_NONE);