Line data    Source code

       1              : /*
       2              :  * SPDX-License-Identifier: GPL-3.0-only
       3              :  * MuseScore-CLA-applies
       4              :  *
       5              :  * MuseScore Studio
       6              :  * Music Composition & Notation
       7              :  *
       8              :  * Copyright (C) 2024 MuseScore Limited and others
       9              :  *
      10              :  * This program is free software: you can redistribute it and/or modify
      11              :  * it under the terms of the GNU General Public License version 3 as
      12              :  * published by the Free Software Foundation.
      13              :  *
      14              :  * This program is distributed in the hope that it will be useful,
      15              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17              :  * GNU General Public License for more details.
      18              :  *
      19              :  * You should have received a copy of the GNU General Public License
      20              :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      21              :  */
      22              : 
      23              : #include "ioc.h"
      24              : 
      25              : #include "log.h"
      26              : 
      27              : #ifndef NO_QT_SUPPORT
      28              : #include <QQmlEngine>
      29              : #include <QQmlContext>
      30              : #include <QWidget>
      31              : 
      32          189 : muse::Contextable::GetContext muse::iocCtxForQmlObject(const QObject* o)
      33              : {
      34          189 :     return [o]() {
      35           18 :         const QObject* p = o;
      36           18 :         QQmlContext* ctx = qmlContext(p);
      37           21 :         while (!ctx && p->parent()) {
      38            3 :             p = p->parent();
      39            3 :             ctx = qmlContext(p);
      40              :         }
      41              : 
      42           18 :         IF_ASSERT_FAILED(ctx) {
      43            0 :             LOGW() << "QQmlContext is not set for QML Object: " << o->metaObject()->className();
      44            0 :             return modularity::ContextPtr();
      45              :         }
      46              : 
      47           18 :         return iocCtxForQmlContext(ctx);
      48          189 :     };
      49              : }
      50              : 
      51           18 : muse::modularity::ContextPtr muse::iocCtxForQmlContext(const QQmlContext* ctx)
      52              : {
      53           19 :     TRACEFUNC;
      54              : 
      55              :     //! NOTE: Currently, each IoC context (window)
      56              :     // has its own instance of the Qml Engine,
      57              :     // and thus its own root Qml Context. We can use it directly.
      58           18 :     const QQmlContext* rootContext = ctx->engine()->rootContext();
      59              : 
      60           18 :     QmlIoCContext* qmlIoc = rootContext->contextProperty("ioc_context").value<QmlIoCContext*>();
      61           18 :     IF_ASSERT_FAILED(qmlIoc) {
      62            0 :         LOGW() << "QmlIoCContext is not set for QML Context: " << rootContext->objectName();
      63            0 :         return modularity::ContextPtr();
      64              :     }
      65              : 
      66           18 :     return qmlIoc->ctx;
      67           18 : }
      68              : 
      69            0 : muse::Contextable::GetContext muse::iocCtxForQWidget(const QWidget* w)
      70              : {
      71            0 :     return [w]() {
      72            0 :         IF_ASSERT_FAILED(w) {
      73            0 :             return modularity::ContextPtr();
      74              :         }
      75              : 
      76            0 :         const QObject* obj = w;
      77            0 :         while (obj) {
      78            0 :             bool ok = false;
      79            0 :             int ctxId = obj->property("ioc_context").toInt(&ok);
      80            0 :             if (ok) {
      81            0 :                 return std::make_shared<modularity::Context>(ctxId);
      82              :             }
      83            0 :             obj = obj->parent();
      84              :         }
      85              : 
      86            0 :         UNREACHABLE;
      87              :         return modularity::ContextPtr();
      88            0 :     };
      89              : }
      90              : 
      91              : #endif