339 lines
12 KiB
C++
Executable File
339 lines
12 KiB
C++
Executable File
#include "backuplistwidget.h"
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#include <QHBoxLayout>
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#include <QVBoxLayout>
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#include <QMimeData>
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#include <QFileInfo>
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#include <QScrollBar>
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#include "../messageboxutils.h"
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#include "../gsettingswrapper.h"
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#include "../globalbackupinfo.h"
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#include "component/imageutil.h"
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#define WIDTH_ITEM 36
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#define MERGE_IN 8
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#define WIDTH_SPACING 5
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MyItemWidget::MyItemWidget(QWidget* parent, QListWidgetItem *item) :
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QWidget(parent),
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m_item(item)
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{
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if (parent && item)
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item->setSizeHint(QSize(parent->width() - 5, WIDTH_ITEM));
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setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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QHBoxLayout *hlayout = new QHBoxLayout;
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hlayout->setContentsMargins(5, 2, 2, 2);
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hlayout->setSpacing(WIDTH_SPACING);
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m_label = new MyLabel;
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m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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m_label->setIsOriginal(true);
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m_buttonDelete = new QPushButton;
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m_buttonDelete->setFlat(true);
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m_buttonDelete->setFixedSize(20, 20);
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m_buttonDelete->setIcon(ImageUtil::loadTheme("window-close-symbolic", ":/symbos/window-close-symbolic", "white", 20));
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m_buttonDelete->setVisible(false);
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hlayout->addWidget(m_label);
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hlayout->addWidget(m_buttonDelete);
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// hlayout->setAlignment(Qt::AlignLeft);
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connect(this, &MyItemWidget::setScrollWidth, this, [=](int width) {
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if (parent && this->m_item)
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item->setSizeHint(QSize(width - 5 - this->m_scrollWidth, WIDTH_ITEM));
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int labelWidth = this->m_label->width();
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this->m_extWidth = 0;
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// 隐藏滚动条时会增加右侧边距
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if (this->m_scrollWidth > 0 && width == 0)
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this->m_extWidth = -1 * MERGE_IN;
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// 显示滚动条时去掉右侧边距
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else if (this->m_scrollWidth == 0 && width > 0)
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this->m_extWidth = MERGE_IN;
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this->m_label->setFixedWidth(labelWidth + (this->m_scrollWidth - width) + this->m_extWidth);
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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this->m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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this->m_scrollWidth = width;
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});
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connect(GlobelBackupInfo::inst().getGlobalSignals(), &GlobalSignals::fontChanged, this, [=](int fontSize) {
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QFont font = this->m_label->font();
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font.setPointSize(fontSize);
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this->m_label->setFont(font);
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// 字体家族、大小变化需重绘，并且字体大小变化也可能会造成显示不全问题
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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});
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connect(this, &MyItemWidget::selected, this, [=](bool checked) {
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int labelWidth = this->m_label->width();
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if (checked) {
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this->m_buttonDelete->setVisible(true);
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this->m_label->setFixedWidth(labelWidth - WIDTH_SPACING - m_buttonDelete->width());
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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this->m_label->setFontColor(Qt::white);
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this->m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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this->m_label->setStyleSheet("QLabel {color:white}"
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"QToolTip {color:palette(windowText)}");
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this->m_checked = true;
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} else {
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this->m_buttonDelete->setVisible(false);
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this->m_label->setFixedWidth(labelWidth + WIDTH_SPACING + m_buttonDelete->width());
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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this->m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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this->m_label->setStyleSheet("QLabel {color:palette(windowText)}"
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"QToolTip {color:palette(windowText)}");
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this->m_checked = false;
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}
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});
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connect(this, &MyItemWidget::resetItemWidth, this, [=](int width) {
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if (parent && item) {
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QListWidget *parentWidget = qobject_cast<QListWidget *>(parent);
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QScrollBar *vertScroll = parentWidget->verticalScrollBar();
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int scrollWidth = 0;
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if (vertScroll->isVisible()) {
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scrollWidth = vertScroll->size().width();
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}
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this->m_scrollWidth = scrollWidth;
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item->setSizeHint(QSize(width - 5 - this->m_scrollWidth, WIDTH_ITEM));
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}
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if (this->m_buttonDelete->isVisible()) {
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this->m_label->setFixedWidth(width - WIDTH_SPACING - m_buttonDelete->width() - 7 - this->m_scrollWidth);
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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this->m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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} else {
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this->m_label->setFixedWidth(width - WIDTH_SPACING - 2 - this->m_scrollWidth);
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this->m_label->setElidedText(this->m_text, Qt::ElideLeft);
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this->m_label->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
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}
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});
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connect(m_buttonDelete, &QPushButton::clicked, this, [=]() {
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this->m_item = nullptr;
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emit deleteItem();
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});
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this->setLayout(hlayout);
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}
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void MyItemWidget::setText(const QString& text)
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{
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m_text = text;
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// m_label->setFixedWidth(this->width() - 7 - this->m_scrollWidth);
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m_label->setElidedText(m_text, Qt::ElideLeft);
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m_label->setToolTip(m_text);
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}
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MyItemWidget::~MyItemWidget()
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{
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}
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BackupListWidget::BackupListWidget(QWidget *parent /*= nullptr*/, QHBoxLayout *parentLayout /*= nullptr*/) :
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QListWidget(parent),
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m_parentLayout(parentLayout)
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{
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setSortingEnabled(false);
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setAcceptDrops(true);
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setAlternatingRowColors(true);
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// setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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// 设置为无边框，默认时为StyledPanel
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setFrameShape(QListWidget::NoFrame);
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if (parentLayout != nullptr) {
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parentLayout->setContentsMargins(MERGE_IN, MERGE_IN, MERGE_IN, MERGE_IN);
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setGridSize(QSize(this->width(), 40 + MERGE_IN / 2));
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} else
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setGridSize(QSize(this->width(), 40));
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// 列表为空时，展示一个“+”号图标和拖拽文件提示
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m_plusLogo = new PixmapLabel;
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m_plusLogo->setThemeIconSchema("list-add-symbolic", ":/symbos/list-add-symbolic", QSize(16, 16));
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m_plusLogo->setEnabled(false);
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// 文件拖放区域
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m_plusText = new QLabel;
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m_plusText->setText(tr("File drag and drop area"));
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m_plusText->setEnabled(false);
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QHBoxLayout *hlayout = new QHBoxLayout;
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hlayout->addStretch();
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hlayout->addWidget(m_plusLogo);
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hlayout->addWidget(m_plusText);
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hlayout->addStretch();
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QVBoxLayout *vlayout = new QVBoxLayout;
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vlayout->addStretch();
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vlayout->addLayout(hlayout);
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vlayout->addStretch();
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setLayout(vlayout);
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connect(this, &BackupListWidget::currentItemChanged, this, [=](QListWidgetItem *current, QListWidgetItem *previous) {
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int row = this->currentRow();
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if (current) {
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MyItemWidget *widget = qobject_cast<MyItemWidget *>(this->itemWidget(current));
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if (widget) {
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if (-1 == row)
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emit widget->selected(false);
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else
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emit widget->selected(true);
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}
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}
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if (previous) {
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MyItemWidget *widget = qobject_cast<MyItemWidget *>(this->itemWidget(previous));
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if (widget) {
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emit widget->selected(false);
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}
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}
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});
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// 大小改变
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connect(GlobelBackupInfo::inst().getGlobalSignals(), &GlobalSignals::widthChanged, this, [=](){
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emit this->resetItemWidth(this->width());
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});
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}
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BackupListWidget::~BackupListWidget()
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{}
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bool BackupListWidget::contains(const QString& text)
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{
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// 1、针对使用addItem等的正规使用场景（展示内容在原生item上）
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if (findItems(text, Qt::MatchCaseSensitive).size() > 0)
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return true;
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// 2、针对使用setItemWidget添加项（展示内容在widget上）的特殊使用场景
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return m_List.contains(text);
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}
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bool BackupListWidget::appendItem(const QString &text)
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{
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if (!checkPathLimit(text))
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return false;
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int count = this->count();
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if (count > 0)
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++count;
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QListWidgetItem *item = new QListWidgetItem(this, m_type);
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MyItemWidget *widget = new MyItemWidget(this, item);
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this->setItemWidget(item, widget);
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// 必须将scrollToBottom等这种滚动条操作放到判断滚动条是否显示isVisible之前
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this->scrollToBottom();
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connect(this, &BackupListWidget::setScrollWidth, widget, &MyItemWidget::setScrollWidth);
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// 滚动条是否展示
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QScrollBar *vertScroll = verticalScrollBar();
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int scrollWidth = 0;
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if (vertScroll->isVisible()) {
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if (m_parentLayout != nullptr)
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m_parentLayout->setContentsMargins(MERGE_IN, MERGE_IN, 0, MERGE_IN);
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scrollWidth = vertScroll->size().width();
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emit this->setScrollWidth(scrollWidth);
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}
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widget->setText(text);
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m_List << text;
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connect(widget, &MyItemWidget::deleteItem, this, [=]() {
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this->m_List.removeOne(widget->text());
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this->removeItemWidget(item);
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this->takeItem(this->row(item));
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delete item;
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this->scrollToBottom();
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if (this->count() == 0) {
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this->m_plusLogo->setVisible(true);
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this->m_plusText->setVisible(true);
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emit this->deleteEmpty();
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} else {
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QScrollBar *vertScrollBar = verticalScrollBar();
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if (!vertScrollBar->isVisible()) {
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if (m_parentLayout != nullptr)
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m_parentLayout->setContentsMargins(MERGE_IN, MERGE_IN, MERGE_IN, MERGE_IN);
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emit this->setScrollWidth(0);
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}
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}
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});
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connect(this, &BackupListWidget::resetItemWidth, widget, &MyItemWidget::resetItemWidth);
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m_plusLogo->setVisible(false);
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m_plusText->setVisible(false);
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emit this->addedItem();
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return true;
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}
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void BackupListWidget::dropEvent(QDropEvent *event)
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{
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if (event->mimeData()->hasUrls()) {
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for (QUrl url : event->mimeData()->urls()) {
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QString file = url.toString();
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if (file.startsWith("file://")) {
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file.replace("file://", "");
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appendItem(url.path());
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}
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}
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}
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}
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bool BackupListWidget::checkPathLimit(const QString &path)
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{
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// 防命令注入
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// 1、形如：mkdir '`id&>id_bak_test.txt`'中的文件夹名称
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// 2、形如：$()的文件夹名称
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// 3、形如：${}的文件夹名称
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// 4、包含[;、&、|]等可以包含并执行系统命令或用于连续执行系统命令的符号
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// if ( path.contains(QRegularExpression(".*`.*`.*"))
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// || path.contains(QRegularExpression(".*\\$\\(.*\\).*"))
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// || path.contains(QRegularExpression(".*\\$\\{.*\\}.*"))
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// || path.contains(QRegularExpression("[;&|]+"))) {
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// MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"), QObject::tr("Path can not include symbols that such as : ``,$(),${},;,&,|,etc."), QObject::tr("Ok"));
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// return false;
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// }
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// 1、列表中是否已经存在
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if (contains(path)) {
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MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
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QObject::tr("Path already exists : ") + path,
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QObject::tr("Ok"));
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return false;
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}
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// 2、路径是否存在
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QFileInfo fileInfo(path);
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if (!fileInfo.exists()) {
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MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
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QObject::tr("The file or directory does not exist : ") + path,
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QObject::tr("Ok"));
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return false;
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}
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// 3、是否是限定路径及其子路径
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bool blimit = false;
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QString dirCanBeSelected;
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for (const QString &item : m_pathLimit) {
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if (path.startsWith(item)) {
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blimit = true;
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break;
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}
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if (dirCanBeSelected.isEmpty())
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dirCanBeSelected = item;
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else {
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dirCanBeSelected += ",";
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dirCanBeSelected += item;
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}
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}
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if (m_pathLimit.size() > 0 && !blimit) {
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MessageBoxUtils::QMESSAGE_BOX_WARNING(this, QObject::tr("Warning"),
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QObject::tr("Only data that exists in the follow directorys can be selected: %1.\n Path:%2 is not in them.").arg(dirCanBeSelected).arg(path),
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QObject::tr("Ok"));
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return false;
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}
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return true;
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}
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