<template>
<div v-if="component" class="qvzfzxam _narrow_">
	<div class="container">
		<header class="header" @contextmenu.prevent.stop="onContextmenu">
			<button v-if="history.length > 0" class="_button" @click="back()"><i class="fas fa-chevron-left"></i></button>
			<button v-else class="_button" style="pointer-events: none;"><!-- マージンのバランスを取るためのダミー --></button>
			<span class="title">{{ pageInfo.title }}</span>
			<button class="_button" @click="close()"><i class="fas fa-times"></i></button>
		</header>
		<MkHeader class="pageHeader" :info="pageInfo"/>
		<component :is="component" v-bind="props" :ref="changePage"/>
	</div>
</div>
</template>

<script lang="ts">
import { defineComponent } from 'vue';
import * as os from '@/os';
import copyToClipboard from '@/scripts/copy-to-clipboard';
import { resolve } from '@/router';
import { url } from '@/config';
import * as symbols from '@/symbols';

export default defineComponent({
	provide() {
		return {
			navHook: (path) => {
				this.navigate(path);
			}
		};
	},

	data() {
		return {
			path: null,
			component: null,
			props: {},
			pageInfo: null,
			history: [],
		};
	},

	computed: {
		url(): string {
			return url + this.path;
		}
	},

	methods: {
		changePage(page) {
			if (page == null) return;
			if (page[symbols.PAGE_INFO]) {
				this.pageInfo = page[symbols.PAGE_INFO];
			}
		},

		navigate(path, record = true) {
			if (record && this.path) this.history.push(this.path);
			this.path = path;
			const { component, props } = resolve(path);
			this.component = component;
			this.props = props;
		},

		back() {
			this.navigate(this.history.pop(), false);
		},

		close() {
			this.path = null;
			this.component = null;
			this.props = {};
		},

		onContextmenu(ev: MouseEvent) {
			os.contextMenu([{
				type: 'label',
				text: this.path,
			}, {
				icon: 'fas fa-expand-alt',
				text: this.$ts.showInPage,
				action: () => {
					this.$router.push(this.path);
					this.close();
				}
			}, {
				icon: 'fas fa-window-maximize',
				text: this.$ts.openInWindow,
				action: () => {
					os.pageWindow(this.path);
					this.close();
				}
			}, null, {
				icon: 'fas fa-external-link-alt',
				text: this.$ts.openInNewTab,
				action: () => {
					window.open(this.url, '_blank');
					this.close();
				}
			}, {
				icon: 'fas fa-link',
				text: this.$ts.copyLink,
				action: () => {
					copyToClipboard(this.url);
				}
			}], ev);
		}
	}
});
</script>

<style lang="scss" scoped>
.qvzfzxam {
	$header-height: 58px; // TODO: どこかに集約したい

	--root-margin: 16px;
	--margin: var(--marginHalf);

	> .container {
		position: fixed;
		width: 370px;
		height: 100vh;
		overflow: auto;
		box-sizing: border-box;

		> .header {
			display: flex;
			position: sticky;
			z-index: 1000;
			top: 0;
			height: $header-height;
			width: 100%;
			line-height: $header-height;
			text-align: center;
			font-weight: bold;
			//background-color: var(--panel);
			-webkit-backdrop-filter: var(--blur, blur(32px));
			backdrop-filter: var(--blur, blur(32px));
			background-color: var(--header);

			> ._button {
				height: $header-height;
				width: $header-height;

				&:hover {
					color: var(--fgHighlighted);
				}
			}

			> .title {
				flex: 1;
				position: relative;
			}
		}
	}
}
</style>

