Add the emoji helper class which can be used by text-input controls to provide emoji picker support
Kitty Barnett
parent
ec23b4bc63
commit
dad25bcb1e
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@ -54,6 +54,7 @@ set(llui_SOURCE_FILES
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lldraghandle.cpp
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lleditmenuhandler.cpp
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llemojidictionary.cpp
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llemojihelper.cpp
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llf32uictrl.cpp
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llfiltereditor.cpp
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llflashtimer.cpp
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@ -165,6 +166,7 @@ set(llui_HEADER_FILES
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lldockcontrol.h
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lleditmenuhandler.h
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llemojidictionary.h
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llemojihelper.h
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llf32uictrl.h
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llfiltereditor.h
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llflashtimer.h
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@ -0,0 +1,142 @@
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/**
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* @file llemojihelper.h
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* @brief Header file for LLEmojiHelper
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*
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* $LicenseInfo:firstyear=2014&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2014, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llemojidictionary.h"
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#include "llemojihelper.h"
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#include "llfloater.h"
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#include "llfloaterreg.h"
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#include "lluictrl.h"
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// ============================================================================
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// Constants
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//
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constexpr char DEFAULT_EMOJI_HELPER_FLOATER[] = "emoji_complete";
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constexpr S32 HELPER_FLOATER_OFFSET_X = 20;
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constexpr S32 HELPER_FLOATER_OFFSET_Y = 0;
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// ============================================================================
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// LLEmojiHelper
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//
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std::string LLEmojiHelper::getToolTip(llwchar ch) const
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{
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return LLEmojiDictionary::instance().getNameFromEmoji(ch);
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}
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bool LLEmojiHelper::isActive(const LLUICtrl* ctrl_p) const
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{
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return mHostHandle.get() == ctrl_p;
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}
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// static
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bool LLEmojiHelper::isCursorInEmojiCode(const LLWString& wtext, S32 cursorPos, S32* pShortCodePos)
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{
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S32 shortCodePos = cursorPos;
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while (shortCodePos > 1 &&
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(LLStringOps::isAlnum(wtext[shortCodePos - 1]) || wtext[shortCodePos - 1] == L'-' || wtext[shortCodePos - 1] == L'_') )
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{
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shortCodePos--;
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}
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bool isShortCode = (L':' == wtext[shortCodePos - 1]) && (cursorPos - shortCodePos >= 2);
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if (pShortCodePos)
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*pShortCodePos = (isShortCode) ? shortCodePos - 1 : -1;
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return isShortCode;
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}
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void LLEmojiHelper::showHelper(LLUICtrl* hostctrl_p, S32 local_x, S32 local_y, const std::string& short_code, std::function<void(LLWString)> cb)
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{
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if (mHelperHandle.isDead())
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{
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LLFloater* pHelperFloater = LLFloaterReg::getInstance(DEFAULT_EMOJI_HELPER_FLOATER);
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mHelperHandle = pHelperFloater->getHandle();
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mHelperCommitConn = pHelperFloater->setCommitCallback(std::bind([&](const LLSD& sdValue) { onCommitEmoji(utf8str_to_wstring(sdValue.asStringRef())); }, std::placeholders::_2));
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}
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setHostCtrl(hostctrl_p);
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mEmojiCommitCb = cb;
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S32 floater_x, floater_y;
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if (!hostctrl_p->localPointToOtherView(local_x, local_y, &floater_x, &floater_y, gFloaterView))
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{
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LL_ERRS() << "Cannot show emoji helper for non-floater controls." << LL_ENDL;
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return;
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}
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LLFloater* pHelperFloater = mHelperHandle.get();
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LLRect rct = pHelperFloater->getRect();
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rct.setLeftTopAndSize(floater_x - HELPER_FLOATER_OFFSET_X, floater_y - HELPER_FLOATER_OFFSET_Y + rct.getHeight(), rct.getWidth(), rct.getHeight());
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pHelperFloater->setRect(rct);
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pHelperFloater->openFloater(LLSD().with("hint", short_code));
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}
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void LLEmojiHelper::hideHelper(const LLUICtrl* ctrl_p)
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{
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setHostCtrl(nullptr);
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}
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bool LLEmojiHelper::handleKey(const LLUICtrl* ctrl_p, KEY key, MASK mask)
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{
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if (mHelperHandle.isDead() || !isActive(ctrl_p))
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{
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return false;
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}
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return mHelperHandle.get()->handleKey(key, mask, true);
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}
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void LLEmojiHelper::onCommitEmoji(const LLWString& wstr)
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{
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if (!mHostHandle.isDead() && mEmojiCommitCb)
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{
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mEmojiCommitCb(wstr);
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}
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}
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void LLEmojiHelper::setHostCtrl(LLUICtrl* hostctrl_p)
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{
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const LLUICtrl* pCurHostCtrl = mHostHandle.get();
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if (pCurHostCtrl != hostctrl_p)
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{
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mHostCtrlFocusLostConn.disconnect();
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mHostHandle.markDead();
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mEmojiCommitCb = {};
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if (!mHelperHandle.isDead())
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{
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mHelperHandle.get()->closeFloater();
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}
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if (hostctrl_p)
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{
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mHostHandle = hostctrl_p->getHandle();
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mHostCtrlFocusLostConn = hostctrl_p->setFocusLostCallback(std::bind([&]() { hideHelper(getHostCtrl()); }));
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}
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}
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}
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@ -0,0 +1,64 @@
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/**
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* @file llemojihelper.h
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* @brief Header file for LLEmojiHelper
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*
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* $LicenseInfo:firstyear=2014&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2014, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#pragma once
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#include "llhandle.h"
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#include "llsingleton.h"
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#include <boost/signals2.hpp>
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class LLFloater;
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class LLUICtrl;
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class LLEmojiHelper : public LLSingleton<LLEmojiHelper>
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{
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LLSINGLETON(LLEmojiHelper) {}
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~LLEmojiHelper() override {}
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public:
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// General
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std::string getToolTip(llwchar ch) const;
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bool isActive(const LLUICtrl* ctrl_p) const;
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static bool isCursorInEmojiCode(const LLWString& wtext, S32 cursor_pos, S32* short_code_pos_p = nullptr);
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void showHelper(LLUICtrl* hostctrl_p, S32 local_x, S32 local_y, const std::string& short_code, std::function<void(LLWString)> commit_cb);
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void hideHelper(const LLUICtrl* ctrl_p);
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// Eventing
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bool handleKey(const LLUICtrl* ctrl_p, KEY key, MASK mask);
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void onCommitEmoji(const LLWString& wstr);
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protected:
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LLUICtrl* getHostCtrl() const { return mHostHandle.get(); }
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void setHostCtrl(LLUICtrl* hostctrl_p);
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private:
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LLHandle<LLUICtrl> mHostHandle;
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LLHandle<LLFloater> mHelperHandle;
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boost::signals2::connection mHostCtrlFocusLostConn;
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boost::signals2::connection mHelperCommitConn;
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std::function<void(LLWString)> mEmojiCommitCb;
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};
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