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<?php |
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// This file is part of BOINC. |
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// https://boinc.berkeley.edu |
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// Copyright (C) 2024 University of California |
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// |
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// BOINC is free software; you can redistribute it and/or modify it |
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// under the terms of the GNU Lesser General Public License |
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// as published by the Free Software Foundation, |
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// either version 3 of the License, or (at your option) any later version. |
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// |
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// BOINC 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. |
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// See the GNU 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 License |
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>. |
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// show potentially long text with More/Less buttons |
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// output text; if significantly more than $nchars, |
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// show the first part and a More/Less button that toggles the remainder |
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// |
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// $text can't contain HTML tags (else would have to do lots of parsing) |
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// |
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function show_text_more($text, $nchars) { |
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echo show_text_more_aux($test, $nchars); |
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} |
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// same, but returns text rather than outputting it |
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// |
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function show_text_more_aux($text, $nchars) { |
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static $count = 0; |
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$n = strlen($text); |
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if ($n < $nchars) { |
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return $text; |
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} |
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// find where to break |
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$b = strpos($text, ' ', $nchars); |
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if ($b === false) { |
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return $text; |
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} |
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// don't break if tail is short |
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if (($n - $b) < 40) { |
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return $text; |
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} |
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$x = ''; |
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if ($count == 0) { |
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$x .= more_text_script(); |
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} |
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$x .= substr($text, 0, $b); |
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$x .= sprintf('<span id="dots_%d">...</span>', $count); |
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$x .= sprintf('<span id="more_%d">', $count); |
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$x .= substr($text, $b); |
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$x .= '</span>'; |
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$x .= sprintf( |
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'<a onclick="toggle_more(\'dots_%d\', \'more_%d\', \'btn_%d\')" id="btn_%d"> (more)</a>', |
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$count, $count, $count, $count |
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); |
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$x .= sprintf(' |
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<script>document.getElementById("more_%d").style.display = "none";</script> |
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', |
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$count |
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); |
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$count++; |
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return $x; |
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} |
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function more_text_script() { |
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return ' |
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<script> |
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function toggle_more(dots_id, more_id, btn_id) { |
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var dots = document.getElementById(dots_id); |
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var moreText = document.getElementById(more_id); |
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var btnText = document.getElementById(btn_id); |
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if (dots.style.display === "none") { |
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dots.style.display = "inline"; |
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btnText.innerHTML = " (more)"; |
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moreText.style.display = "none"; |
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} else { |
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dots.style.display = "none"; |
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btnText.innerHTML = " (less)"; |
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moreText.style.display = "inline"; |
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} |
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} |
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</script> |
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'; |
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} |
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?> |
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BOINC /
boinc
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