2010-10-03 23:04:50 +02:00
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// Copyright (c) 2009 The Chromium Embedded Framework Authors. All rights
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// reserved. Use of this source code is governed by a BSD-style license that
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// can be found in the LICENSE file.
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#include "scheme_test.h"
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#include "string_util.h"
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#include "resource_util.h"
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#include "resource.h"
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// Implementation of the schema handler for client:// requests.
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class ClientSchemeHandler : public CefThreadSafeBase<CefSchemeHandler>
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{
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public:
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ClientSchemeHandler() : size_(0), offset_(0), bytes_(NULL) {}
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// Process the request. All response generation should take place in this
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// method. If there is no response set |response_length| to zero and
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// ReadResponse() will not be called. If the response length is not known then
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// set |response_length| to -1 and ReadResponse() will be called until it
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// returns false or until the value of |bytes_read| is set to 0. Otherwise,
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// set |response_length| to a positive value and ReadResponse() will be called
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// until it returns false, the value of |bytes_read| is set to 0 or the
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// specified number of bytes have been read. If there is a response set
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// |mime_type| to the mime type for the response.
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virtual bool ProcessRequest(CefRefPtr<CefRequest> request,
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std::wstring& mime_type, int* response_length)
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{
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bool handled = false;
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Lock();
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std::wstring url = request->GetURL();
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if(wcsstr(url.c_str(), L"handler.html") != NULL) {
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// Build the response html
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html_ = "<html><head><title>Client Scheme Handler</title></head><body>"
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"This contents of this page page are served by the "
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"ClientSchemeHandler class handling the client:// protocol."
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"<br>You should see an image:"
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"<br/><img src=\"client://tests/client.gif\"><pre>";
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// Output a string representation of the request
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std::wstring dump;
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DumpRequestContents(request, dump);
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html_.append(WStringToString(dump));
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html_.append("</pre><br>Try the test form:"
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"<form method=\"POST\" action=\"handler.html\">"
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"<input type=\"text\" name=\"field1\">"
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"<input type=\"text\" name=\"field2\">"
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"<input type=\"submit\">"
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"</form></body></html>");
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handled = true;
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size_ = html_.size();
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bytes_ = (LPBYTE)html_.c_str();
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// Set the resulting mime type
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mime_type = L"text/html";
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}
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else if(wcsstr(url.c_str(), L"client.gif") != NULL) {
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// Load the response image
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if(LoadBinaryResource(IDS_LOGO, size_, bytes_)) {
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handled = true;
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// Set the resulting mime type
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mime_type = L"image/jpg";
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}
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}
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// Set the resulting response length
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*response_length = size_;
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Unlock();
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return handled;
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}
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// Cancel processing of the request.
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virtual void Cancel()
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{
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}
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// Copy up to |bytes_to_read| bytes into |data_out|. If the copy succeeds
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// set |bytes_read| to the number of bytes copied and return true. If the
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// copy fails return false and ReadResponse() will not be called again.
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virtual bool ReadResponse(void* data_out, int bytes_to_read,
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int* bytes_read)
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{
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bool has_data = false;
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*bytes_read = 0;
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Lock();
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if(offset_ < size_) {
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// Copy the next block of data into the buffer.
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int transfer_size = min(bytes_to_read, static_cast<int>(size_ - offset_));
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memcpy(data_out, bytes_ + offset_, transfer_size);
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offset_ += transfer_size;
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*bytes_read = transfer_size;
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has_data = true;
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}
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Unlock();
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return has_data;
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}
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private:
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DWORD size_, offset_;
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LPBYTE bytes_;
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std::string html_;
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};
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// Implementation of the factory for for creating schema handlers.
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class ClientSchemeHandlerFactory :
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public CefThreadSafeBase<CefSchemeHandlerFactory>
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{
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public:
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// Return a new scheme handler instance to handle the request.
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virtual CefRefPtr<CefSchemeHandler> Create()
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{
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return new ClientSchemeHandler();
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}
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};
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void InitSchemeTest()
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{
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CefRegisterScheme(L"client", L"tests", new ClientSchemeHandlerFactory());
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}
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void RunSchemeTest(CefRefPtr<CefBrowser> browser)
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{
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browser->GetMainFrame()->LoadURL(L"client://tests/handler.html");
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}
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