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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/input_method/virtual_keyboard_selector.h"
#include "base/logging.h"
#include "base/stl_util-inl.h"
namespace {
const char kDefaultURLPath[] = "index.html";
const size_t kDefaultURLPathLen = arraysize(kDefaultURLPath) - 1;
} // namespace
namespace chromeos {
namespace input_method {
VirtualKeyboard::VirtualKeyboard(const GURL& url,
const std::set<std::string>& supported_layouts,
bool is_system)
: url_(url),
supported_layouts_(supported_layouts),
is_system_(is_system) {
}
VirtualKeyboard::~VirtualKeyboard() {
}
GURL VirtualKeyboard::GetURLForLayout(const std::string& layout) const {
if (layout.empty()) {
return url_;
}
url_canon::Replacements<char> replacements;
replacements.SetPath(
kDefaultURLPath, url_parse::Component(0, kDefaultURLPathLen));
// TODO(yusukes): would be better to URL-encode the |layout|?
replacements.SetRef(layout.c_str(), url_parse::Component(0, layout.length()));
return url_.ReplaceComponents(replacements);
}
VirtualKeyboardSelector::VirtualKeyboardSelector()
: current_(NULL) {
}
VirtualKeyboardSelector::~VirtualKeyboardSelector() {
STLDeleteElements(&keyboards_);
STLDeleteElements(&system_keyboards_);
}
void VirtualKeyboardSelector::AddVirtualKeyboard(
const GURL& url,
const std::set<std::string>& supported_layouts,
bool is_system) {
const VirtualKeyboard* new_keyboard = new VirtualKeyboard(url,
supported_layouts,
is_system);
if (is_system) {
system_keyboards_.push_front(new_keyboard);
} else {
keyboards_.push_front(new_keyboard);
}
}
const VirtualKeyboard* VirtualKeyboardSelector::SelectVirtualKeyboard(
const std::string& layout) {
if (layout.empty()) {
LOG(ERROR) << "No layout is specified";
return NULL;
}
// First, check whether the current keyboard supports the layout.
if (current_ && current_->supported_layouts().count(layout) > 0) {
return current_;
}
const VirtualKeyboard* keyboard = SelectVirtualKeyboardInternal(layout);
if (!keyboard) {
VLOG(1) << "No virtual keyboard for " << layout << " is found";
return NULL;
}
current_ = keyboard;
return keyboard;
}
const VirtualKeyboard* VirtualKeyboardSelector::SelectVirtualKeyboardInternal(
const std::string& layout) {
std::list<const VirtualKeyboard*>::const_iterator iter;
for (iter = keyboards_.begin(); iter != keyboards_.end(); ++iter) {
if ((*iter)->supported_layouts().count(layout) > 0) {
return *iter;
}
}
for (iter = system_keyboards_.begin();
iter != system_keyboards_.end(); ++iter) {
if ((*iter)->supported_layouts().count(layout) > 0) {
return *iter;
}
}
return NULL;
}
} // namespace input_method
} // namespace chromeos
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