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Slightly optimize accelerator token comparing.

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This commit is contained in:
Cheng Zhao 2013-10-21 14:05:43 +08:00
parent 534ff5efdb
commit f091352c56
1 changed files with 11 additions and 16 deletions
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27
browser/ui/accelerator_util.cc
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@ -117,7 +117,12 @@ bool StringToAccelerator(const std::string& description,
int modifiers = ui::EF_NONE;
ui::KeyboardCode key = ui::VKEY_UNKNOWN;
for (size_t i = 0; i < tokens.size(); i++) {
if (tokens[i] == "ctrl") {
if (tokens[i].size() == 1) {
bool shifted = false;
key = KeyboardCodeFromCharCode(tokens[i][0], &shifted);
if (shifted)
modifiers |= ui::EF_SHIFT_DOWN;
} else if (tokens[i] == "ctrl") {
modifiers |= ui::EF_CONTROL_DOWN;
} else if (tokens[i] == "command") {
modifiers |= ui::EF_COMMAND_DOWN;
@ -125,27 +130,17 @@ bool StringToAccelerator(const std::string& description,
modifiers |= ui::EF_ALT_DOWN;
} else if (tokens[i] == "shift") {
modifiers |= ui::EF_SHIFT_DOWN;
} else if (tokens[i].size() == 1) {
if (key != ui::VKEY_UNKNOWN) {
// Multiple key assignments.
key = ui::VKEY_UNKNOWN;
return false;
}
bool shifted = false;
key = KeyboardCodeFromCharCode(tokens[i][0], &shifted);
if (key == ui::VKEY_UNKNOWN) {
LOG(WARNING) << "Invalid accelerator token: " << tokens[i];
return false;
} else if (shifted) {
modifiers |= ui::EF_SHIFT_DOWN;
}
} else {
LOG(WARNING) << "Invalid accelerator token: " << tokens[i];
return false;
}
}
if (key == ui::VKEY_UNKNOWN) {
LOG(WARNING) << "The accelerator doesn't contain a valid key";
return false;
}
*accelerator = ui::Accelerator(key, modifiers);
SetPlatformAccelerator(accelerator);
return true;